[rules-dev] SumIntegerAccumulateFunction not possible?

[Geoffrey De Smet]

It looks like the value objects of the accumulate framework are always 
Long's - even when they are Integers?


Caused by: java.lang.ClassCastException: java.lang.Long cannot be cast 
to java.lang.Integer
	at 
org.drools.base.accumulators.SumIntegerAccumulateFunction.accumulate(SumIntegerAccumulateFunction.java:36)
	at 
org.drools.base.accumulators.JavaAccumulatorFunctionExecutor.accumulate(JavaAccumulatorFunctionExecutor.java:79)



Here's the piece of code:

     public void accumulate(Object context,
                            Object value) {
         SumIntegerAccumulateFunction.SumData data = 
(SumIntegerAccumulateFunction.SumData) context;
         data.total += ((Integer) value).intValue(); // breaks
     }


Here's the drl:

   when
     $totalDistance : Integer() from accumulate(
        Hop($distance : distance),
        sumInteger($distance)
     );


Here's the Hop object:

     public int getDistance() {
         ...
     }

Look ma, no longs :) Still a ClassCastException on them though.
I must be missing something really obvious?

-- 
With kind regards,
Geoffrey De Smet